Vacuum cleaner



FIG. 1 is a side elevational view of a vacuum cleaner showing my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front end elevational view thereof;

FIG. 5 is a rear end elevational view thereof; and,

FIG. 6 is a side elevational view of the opposite side of FIG. 1.

The ornamental design for a vacuum cleaner, as shown and described.